21378474

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{887}}^1$

素因数の和:1011

約数の個数: 48

約数和(自身を含む): 50424192

約数和(自身を除く): 29045718

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 103, 117, 206, 234, 309, 618, 887, 927, 1339, 1774, 1854, 2661, 2678, 4017, 5322, 7983, 8034, 11531, 12051, 15966, 23062, 24102, 34593, 69186, 91361, 103779, 182722, 207558, 274083, 548166, 822249, 1187693, 1644498, 2375386, 3563079, 7126158, 10689237, 21378474]

約数ペア:

[(1, 21378474), (2, 10689237), (3, 7126158), (6, 3563079), (9, 2375386), (13, 1644498), (18, 1187693), (26, 822249), (39, 548166), (78, 274083), (103, 207558), (117, 182722), (206, 103779), (234, 91361), (309, 69186), (618, 34593), (887, 24102), (927, 23062), (1339, 15966), (1774, 12051), (1854, 11531), (2661, 8034), (2678, 7983), (4017, 5322)]